Ruth Albert Spencer will return to the Montauk Library to present “Johannes Brahms: His Life, His Loves, His Music,” a free lecture-concert, on Sunday from 3:30 to 5 p.m. Ms. Spencer will perform a number of Brahms’s compositions for solo piano. Lilah Gosman, a soprano and a native of Montauk, and Milos Ripicky, a pianist, will augment the presentation. Previously, Ms. Spencer spoke at the library about Mendelssohn, Mozart, and Chopin.